Full circle boom crane



Nov. 9, 1937. J. HAILEY 2,098,237

FULL CIRCLE BOOM CRANE Filed Aug. 17, 1936 4 Sheets-Sheet l Nov. 9, 1937.

J. HAILEY 2,098,237

FULL CIRCLE BOOM CRANE Filed Aug. 17, 1936 4 Sheets-Sheet 2 1 I I I o' 10 l I 1 I I g E o 1O V v, i

Sl me/04M 7 Mona/19 Nov. 9, 1937. J. HAILEY FULL CIRCLE BOOM CRANE Filed Aug. 17, 1936 4 Sheets-Sheet 5 a wuc wk a efkwes ZZZ/76y,

Nov. 9, 1937. J. HAILEY I FULL CIRCLE BOOM CRANE 4 Sheets-Sheet 4 Filed Aug. l7, 1936 5 5 5 w m H y L. m J

Patented Nov. 9, 1937 PATENT OFFIQE FULL CIRCLE BOOM CRANE James Hailey, Tulsa, Okla.

Application August 17, 1936, SerialNo. 96,511

7 Claims. (01. 212-68) This invention relates to improvements in full Fig. 2 is a reargelevation. circle boom cranes of the type adapted. to handle Fig. 2a is a vertical sectional view of an internal materials at any given point in a 360 radius friction expansion clutch forming part of my im- While the power unit per se is in a stationary proved mechanism.

position. Fig. 3 is a top plan View of the rotary table of 5 Some of the objects of the invention are to prothe mechanism. vide a boom crane that is capable of picking up Fig. 4 is a vertical sectional view of a detail and carrying an object in a full circle and of maktaken on the line 44 of Fig. 3. ing one or more complete revolutions; that may Fig. 5 is a plan View of the central portion of be mounted upon commercial tractors, trucks, the table illustrating the means for guiding the 10 railway flat cars or a stationary platform; that hook line and the boom line.

will reduce cost of construction now incurred in Fig. 6 is a vertical sectional view of a detail the building of full circle boom cranes and will intaken on the line 66 of Fig. 5. crease portability and expedite the handling of Referring to the drawings, Ill designates a conany and all materials now handled by such ventional tractor which in accordance with the 15 booms; that is especially adapted for oil field present invention is provided with a power take work such as the handling and laying of pipe 01f unit ll driven from the transmission mechalines or conduits, loading and unloading of manism of thetractor so that the gears of the take chinery, pipe, and all other equipment needed in off unit may be driven in opposite directions.

such work; that can be used in all classes of work The unit I I'bymeans of any suitable power trans- 20 where winch and winch drums are necessary, such mitting device such as a sprocket chain I2 is used as pulling pipe, machinery or any and all matein driving a gear reducer l3 of a Conventional rials across the ground, transporting the same worm gear type. to allow a shaft l4 actuated by from one position to another or pulling material the gear-reducer to be driven by the latter, but

from distances that are inaccessible to the boom, to prevent driving of the gear reducer by the pulling same into a position where it can be then shaft l4. Inother words, the gear reducer funcraised by the boom and loaded upon conveyances tions to lock the shaft l4 and acts as a brake to for transporting to its destination; that can be prevent the shaft M from rotating the gear mounted on a truck to serve leases and for the reducer.

pulling of tubing, rods or casing and the loading The shaft. l4 preferably extends transversely 30 and unloading of the same; that can be employed across thetractor and is supported by a frame l5 for loading and unloading oil field contractors on the latter. A hook line spooling drum I 6 and equipment and for the rigging up and tearing a winchspooling drum H are loosely mounted on down of the same; and that can be used at any the shaft. Each of these drumsis provided with point where it is necessary to load, unload or an annular brake flange l8 and'with an internal 35 transport articles or materials. friction expansion clutch I9. The latter may be Another object of the invention is to provide of any suitabletype such as the one illustrated such a machine including means for instantain Fig, 2a and this type of clutch is used in my n y releasing h l W n h r r r construction to positively connect either drum to 40 power unit that is used to Support the b00111 the shaft or to'allow free rotation of either drum 40 gins to relatively to the shaft when necessary or desir- With the foregoing Objects outlined and with able. Of course, conventional brake bands will other Objects in View which will appear as be used; with the flanges l8 and these as well as description proceed? the inventitm i mu the clutches will be controlled by the operator of novel features hereinafter descnbed in detail, 11- the tractor.

lustrated m the accompanymg drawmgs and A turn table 20 is mounted on the frame 15 for g gg gf g fgg appended chums complete rotation and as best shown in Figs. 3 to 6 inclusive, the table is provided with a series of 1 is side elevation of y 1 proved f 1 frusto conical rollers 2| which roll on an upper FO- circle boom crane and he o eratin mechanism U D g annular track 22 of a race 23. The table has a of the same shown mounted on a conventional pendant skirt 24 carrying a semen of rollers 25 tractor, part of the boom being broken away to facilitate illustration winch engage an overhanging IOWlGI' annular Fig. 1a is a side elevation of the outer end port k 26 forming pa t f t a t pr v nttiption of the boom. ping of thetable on the race. The rollers 2! and 55 25 are preferably mounted on anti-friction bearings 21 to facilitate rotation and prevent wear.

An annular gear 28 is secured to the lower edge of the skirt and is driven by a pinion 29, loosely mounted on a shaft 30 journalled in a bearing 3! on the frame IS. A clutch 32 which may be like that shown in Fig. 2a. is employed in 7 driving the pinion 29 by the shaft 30. The latter may be continuously driven by a sprocket chain 33 actuated by the shaft l4. Obviously when the clutch 32 is in, pinion 29 functions to rotate the table and the degree of rotation will depend upon the length of time the clutch is left in.

As best shown in Fig. 6, the hub 34 of the turn table is mounted by means of an anti-friction thrust bearing 35 on the hub 36 of the race, and a hollow king pin 37 is rigidly connected to the hub 36 and forms a vertical journal for the hub of the turn table. 7

A hook line 38 has one of its ends secured to the drum l3 and this line, as 'shown in Fig. 6, is guided by a sheave 39 that is connected to the underside of the race 23 adjacent to the king pin. From the sheave 39the hook line passes upwardly through the king pin' and over a sheave 40 mounted upon the table 26, and from the sheave 48 the line 38 extends to the hook 4| shown in Fig. 1a, as will be explained later.

A boom 52 has one of its ends hingedly connected tothe top of the turn table adjacent to the axis of the latter for movement about a horizontal axis and the hook line 38 extends along the boom to the point of anchorage 46.

It will be obvious from the foregoing that when 7 the drum I6 is rotatedin the proper direction, the

hook line 38 will be' wound on the drum and will function to lift the hook 4| and the load on the latter, regardless of the position of the boom 42, and in case the load should be such as to tend to tilt the turn table, the operator can immediately release the clutch l9 of the drum l6 so as to release the load and permit it to descend with the hook; r

A back brace 47 is mounted on the turn table and its upper end 48 is preferably arranged some distance above the table'and spaced outwardly from the periphery thereof so as to provide a sturdy means to assist in supporting and swinging the boom. The boom swinging means comprises a boom anchor drum 49 looselymounted on a shaft 50, the latter being rotatable in suitable bearings on the frame l5. An internal friction expansion clutch 52, which. may be of the type shown in Fig. 2a., is employed in rigidly connecting the drum 49 to the shaft 50, and the latter is driven by any suitable means such as a sprocket chain 53 from the shaft 3|. A boom line 54 is wound on the drum 49, and as best shown in Fig. 6, it is guided by a sheave 55 carried by the race 23. The boom line also extends upwardly through the king pin and then over a sheave 56 mounted on the turn table.

From the sheave 56'theboo'm line extends outwardly and about a sheave 51 arranged'at the upper end of the back brace. Then the line is wound about double sheaves 58 and 59, mounted respectively on the boom and back brace, and is finally anchored at 60.

In order to positively lock the boom in any desired position, the boom line drum shaft 50,

(Fig.1) is provided with a fixedly mounted ratchet wheel (it that cooperates with a locking pawl 62.

From the foregoing it will be understood that the transmission mechanism of the tractor, through the instrumentality of the power take off H and gear l3 may be employed to drive the shaft M in either direction. Consequently, by means of the clutch IQ of the drum I6, the hook line 38 may be controlled to raise or lower the hook 4! for connecting it to a load and for lifting or lowering the latter. At the same time or at any other time, by controlling the clutch 32 of the pinion 29, the turn table may be rotated to swing the, boom 2. complete circle or any portion of a revolution. Also if the clutch 52 is thrown in, the boom may be raised or lowered whenever desired, and all of these operations can be controlled by the operator of the tractor. Obviously the mechanism may be used to lift, swing or carry loads, and while the mechanism has been illustrated as mounted upon a tractor, it will be manifest that it may be mounted on any suitable motor vehicle or on a stationary platform. Of course, if it is arranged on a stationary platform, a suitable prime mover must be employed to drive the power take off II.

The winch drum ll may be provided with a hauling line, so as to make the machine available for pulling loads toward the mechanism and to bring the same into position where they may be lifted and moved by the boom mechanism.

The herein described and illustrated embodiment of the invention has given satisfactoryresults in practice, and it will be apparent to those skilled in the art after an understanding of my invention, that changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended that all matters contained in the above description or shownin the drawings shall be interpreted as illustrative and not in a limiting sense.

What I claim and desire to secure by Letters Patent is:

1. A full circle boom crane comprising a race having a hollow king pin, a turn table mounted on the race and rotatable about the axis of said pin, a boom hingedly'mounted on the central portion of the table for movement about an axis arranged perpendicular to the axis of the king pin, a back brace mounted on the table and extending upwardly and outwardly away from the periphery of the table, sheaves carried by the upper end portion of the back brace and by the outer end portion of the boom, a sheave connected to the race and arran ed below the king pin, another sheave mounted on the turn table at one side of the king pin, a boom line guided by said sheaves and having one of its ends operatively connected to the back brace, means for winding and unwinding the boom line, hook line sheaves supported by the boom, another hook line sheave mounted on the turn table at the opposite side of the king pin, another hook line sheave carried by the race and arranged below the king pin, a hook line guided by the hook line sheaves and extending through the king pin, and means for winding and unwinding the hook line.

2. In combination, a motor vehicle, a turn table mounted on the vehicle and capable of turning a complete revolution about a vertical axis, a boom hingedly mounted on said table, a hook and hook line operatively connected with the outer end of the boom, means including a boom line for swinging the boom, both of said lines passing through the central portion of the table, upper and lower guide sheaves forthe lines mounted respectively above. and belovw'the table, a gearreducerdriven bythemotor of; the vehicle, a main shaft driven by :the :gear, re ducer, a winding drum for the hookeline loosely mounted .on the main *shaft; aclutch for: con necting said to the shaft, means for rotating the turn table including a pinion, a pinion shaft on which the pinion is loosely mounted, a clutch for connecting the pinion to its shaft, means for driving the pinion shaft from the main shaft, a boom line shaft driven by the pinion shaft, a winding drum for the boom line loosely mounted on the boom line shaft, and a clutch for connecting the last mentioned drum to the boom line shaft.

3. A full circle boom crane comprising a race having a hollow king pin, a turn table mounted on the race and rotatable about the axis of the pin, a boom hingedly mounted on the table for movement about an axis arranged perpendicular to the axis of the king pin, a back brace mounted on the table and extending upwardly in an inclined direction outwardly away from the central portion of the table, sheaves carried by the upper portion of the back brace and by the outer end portion of the boom, a sheave connected to the race and arranged below the king pin, another sheave mounted on the turn table at one side of the king pin, a boom line guided by said sheaves and having one of its ends anchored to the back brace, means below the table for winding and unwinding the boom line, hook line sheaves supported by the boom, another hook line sheave mounted on the turn table at the opposite side of the king pin, another hook line sheave arranged below the king pin, a hook line guided by the hook line sheaves and extending through the king pin, and means for winding and unwinding the hook line.

4. A full circle boom crane comprising a portable frame, a race fixedly mounted on the frame, a turn table on the race, rollers operatively connecting the table and race for preventing the table from moving downwardly or upwardly relative to the race, a hollow king pin connecting the central portions of the table and race, a thrust bearing for supporting the table on the race, a boom hingedly mounted on the table for movement about an axis arranged perpendicular to the axis of the king pin, a back brace mounted on the table and extending upwardly and outwardly away from the periphery of the table, sheaves carried by the upper portion of the back brace and by the outer end portion of the boom, a sheave connected to the race and arranged below the king pin, another sheave mounted on the turn table at one side of the king pin, a boom line guided by said sheaves and having one of its ends operatively connected to the back brace, means arranged below the table for winding and unwinding the boom line, hook line sheaves supported by the boom, another hook line sheave mounted on the turn table at the opposite sideof the king pin, another hook line sheave arranged below the king pin, a hook line guided by the hook line sheaves and extending through the king pin, and means arranged below the turn table for winding and unwinding the hook line.

5. A full circle boom crane comprising a portable frame, a race member fixedly secured to the frame and provided with an upper annular track and a lower overhanging track, a turn table mounted on the race and having rollers engaging: said tracks to. prevent upward or downward movement of the turn table relatively to the race, a hollow king pin connecting the central: portion o'fcthetable and racejan antifrictioncthrus't bearing lsurroundingthe king pin and Supporting the turntable on the race, a boom hingedly; mounted on the central portion of the table for movement about an axis arranged perpendicular to the axis of the king pin, a back brace mounted on the table and extending upwardly and outwardly away from the table, sheaves carried by the upper portion of the back brace and by the outer end portion of the boom, a sheave arranged below the king pin, another sheave mounted on the turn table at one side of the king pin, a. boom line guided by said sheaves and having one of its ends anchored to the back brace, means below the turn table for winding and unwinding the boom line, hook line sheaves supported by the boom, another hook line sheave mounted on the turn table at the opposite side of the king pin, another hook line sheave arranged below the king in, a hook line guided by the hook line sheaves and extending through the king pin, and means for winding and unwinding the hook line.

6. In a full circle boom crane, a portable race provided with an upper annular track and a lower overhanging track, a turn table mounted on the race, rollers connected to the turn table and engaging both of said tracks for preventing upward or downward movement of the table relatively to the race, said race having a depending skirt car rying the rollers which engage the overhanging track, an annular gear connected to the skirt, a pinion meshing with the gear for driving the latter, means for rotating said pinion, a boom hingedly mounted on the table for movement about an axis arranged perpendicular to the axis of the king pin, a back brace mounted on the table and extending upwardly and outwardly away from the periphery of the table, sheaves carried by the upper portion of the back brace and by the outer end portion of the boom, a sheave arranged below the king pin, another sheave mounted on the turn table at one side of the king pin, a boom line guided by said sheaves and having one of its ends anchored to the back brace, means arranged below the turn table for winding and unwinding the boom line, hook line sheaves supported by the boom, another hook line sheave mounted on the turn table at the opposite side of the king pin, another hook line sheave arranged below the king pin, a hook line guided by the hook line sheaves and extending through the king pin, and means below the king pin for winding and unwinding the hook line.

'7. In a structure of the class described, a motor vehicle, a frame mounted on said vehicle, a race mounted on the frame and having a hollow king pin, a turn table mounted on the race and rotatable about the axis of said pin, anti-friction means cooperating with the turn table and race for limiting the movement of the table upwardly or downwardly relative to therace, a boom supported by the turn table and hingedly mounted on the central portion of the latter for movement about an axis arranged perpendicular to the axis of the king pin, a back brace mounted on the table and extending slantingly upwardly and outwardly away from the central portion of the table, sheaves carried by the upper portion of the back brace and by the outer end portion of the boom, a sheave arranged below the king pin, another sheave mounted on the turn table at one side of the king pin, a-boom line guided by said sheaves and having one of. its endsanchored to the back brace, means driven by the motor of the vehicle for winding and unwinding the boom line, hook line sheavessupported by the boom, another hook line sheave 'mounted on the turn table at the opposite side of the king pin, another book linesheave arranged below the king pin, a hook line guided by the hook line sheaves and extending through the king pin, means driven by the motor of the vehicle for winding and unwinding the hook line, and means driven by' the motor of the vehicle for rotating said turn table.

. JAMES HAILEY. 

